public class MutableFloat extends java.lang.Number implements java.lang.Comparable, Mutable
float
wrapper.Float
,
Serialized FormConstructor and Description |
---|
MutableFloat()
Constructs a new MutableFloat with the default value of zero.
|
MutableFloat(float value)
Constructs a new MutableFloat with the specified value.
|
MutableFloat(java.lang.Number value)
Constructs a new MutableFloat with the specified value.
|
MutableFloat(java.lang.String value)
Constructs a new MutableFloat parsing the given string.
|
Modifier and Type | Method and Description |
---|---|
void |
add(float operand)
Adds a value to the value of this instance.
|
void |
add(java.lang.Number operand)
Adds a value to the value of this instance.
|
int |
compareTo(java.lang.Object obj)
Compares this mutable to another in ascending order.
|
void |
decrement()
Decrements the value.
|
double |
doubleValue()
Returns the value of this MutableFloat as a double.
|
boolean |
equals(java.lang.Object obj)
Compares this object against some other object.
|
float |
floatValue()
Returns the value of this MutableFloat as a float.
|
java.lang.Object |
getValue()
Gets the value as a Float instance.
|
int |
hashCode()
Returns a suitable hash code for this mutable.
|
void |
increment()
Increments the value.
|
int |
intValue()
Returns the value of this MutableFloat as an int.
|
boolean |
isInfinite()
Checks whether the float value is infinite.
|
boolean |
isNaN()
Checks whether the float value is the special NaN value.
|
long |
longValue()
Returns the value of this MutableFloat as a long.
|
void |
setValue(float value)
Sets the value.
|
void |
setValue(java.lang.Object value)
Sets the value from any Number instance.
|
void |
subtract(float operand)
Subtracts a value from the value of this instance.
|
void |
subtract(java.lang.Number operand)
Subtracts a value from the value of this instance.
|
java.lang.Float |
toFloat()
Gets this mutable as an instance of Float.
|
java.lang.String |
toString()
Returns the String value of this mutable.
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public MutableFloat()
public MutableFloat(float value)
value
- the initial value to storepublic MutableFloat(java.lang.Number value)
value
- the initial value to store, not nulljava.lang.NullPointerException
- if the object is nullpublic MutableFloat(java.lang.String value) throws java.lang.NumberFormatException
value
- the string to parse, not nulljava.lang.NumberFormatException
- if the string cannot be parsed into a floatpublic java.lang.Object getValue()
public void setValue(float value)
value
- the value to setpublic void setValue(java.lang.Object value)
public boolean isNaN()
public boolean isInfinite()
public void increment()
public void decrement()
public void add(float operand)
operand
- the value to add, not nullpublic void add(java.lang.Number operand)
operand
- the value to add, not nulljava.lang.NullPointerException
- if the object is nullpublic void subtract(float operand)
operand
- the value to subtractpublic void subtract(java.lang.Number operand)
operand
- the value to subtract, not nulljava.lang.NullPointerException
- if the object is nullpublic int intValue()
intValue
in class java.lang.Number
public long longValue()
longValue
in class java.lang.Number
public float floatValue()
floatValue
in class java.lang.Number
public double doubleValue()
doubleValue
in class java.lang.Number
public java.lang.Float toFloat()
public boolean equals(java.lang.Object obj)
true
if and only if the argument is
not null
and is a Float
object that represents a float
that has the
identical bit pattern to the bit pattern of the float
represented by this object. For this
purpose, two float values are considered to be the same if and only if the method
Float.floatToIntBits(float)
returns the same int value when applied to each.
Note that in most cases, for two instances of class Float
,f1
and f2
,
the value of f1.equals(f2)
is true
if and only if
f1.floatValue() == f2.floatValue()
also has the value true
. However, there are two exceptions:
f1
and f2
both represent Float.NaN
, then the
equals
method returns true
, even though Float.NaN==Float.NaN
has
the value false
.
f1
represents +0.0f
while f2
represents -0.0f
,
or vice versa, the equal
test has the value false
, even though
0.0f==-0.0f
has the value true
.
equals
in class java.lang.Object
obj
- the object to compare with, null returns falsetrue
if the objects are the same; false
otherwise.Float.floatToIntBits(float)
public int hashCode()
hashCode
in class java.lang.Object
public int compareTo(java.lang.Object obj)
compareTo
in interface java.lang.Comparable
obj
- the other mutable to compare to, not nullpublic java.lang.String toString()
toString
in class java.lang.Object
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